Trifolium nigrescens subsp. dolychodon (Sommier) C.Brullo, Brullo & Giusso subspecies synonym

Trifolium nigrescens subsp. meneghinianum (Clem.) M.Keskin subspecies synonym

Trifolium nigrescens var. dolychodon Sommier variety synonym

Trifolium nigrescens var. meneghinianum (Clementi) Hossain variety synonym

Trifolium nigrescens subsp. nigrescens subspecies accepted

Amoria nigrescens subsp. petrisavii (Clem.) Soják subspecies synonym

Trifolium thessalonicum Halácsy & Charrel species synonym

Trifolium polyanthemum Ten. ex DC., 1825 species synonym

Trifolium nigrescens var. grandifolium Ertekin & Akbayin variety synonym

Trifolium molybdocalyx Rchb.f. species synonym

Trifolium hygrophilum Boiss. species synonym

Trifolium nigrescens subsp. petrisavii (Clem.) Holmboe subspecies accepted

Trifolium petrisavii Clementi species synonym

Trifolium meneghinianum Clementi species synonym

Trifolium nigrescens subsp. meneghinianum (Clementi) Zohary subspecies synonym

Trifolium nigrescens subsp. polyanthemum (Ten. ex DC.) Asch. & Graebn. subspecies synonym

Trifolium nigrescens var. gracile Lojac. variety synonym

Trifolium nigrescens var. intermedium Rouy variety synonym